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What Is the Difference Between Active and Passive Tow Wiring For a 2023 BMW X3  

Question:

I have a question about the Stealth Hitch wiring for a 2023 BMW X3 xDrive30i Sport: What is the best way to determine if I need a passive or active wiring harness?

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Expert Reply:

So from what I can gather is that one harness will already have the coding needed to tow properly pre-programmed and the other would not. So a passive harness would then need to be coded before towing, while the active would be ready to roll as is.


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Bryce D
Thomas profile picture

Thomas

5/9/2024

Passive is not wired into the computer. It is isolated and wired into the tail-lighting directly.

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